Television, Kendrick Lamar and Ty Segall are also among those playing the last night of the Spanish festival
The pair worked together over Christmas on a "couple of tracks", but the frontman says Foals is "still my baby"
The Oxford band say they're working with song ideas for fourth album but don't know what will make the cut
The pair recorded a number of tracks together after meeting at a festival
The band played the first of two huge London shows at Alexandra Palace last night (February 14)
The band will top the bill at Parklife and Bestival
The LP won 'Album Of The Year' at the Music Producers Guild Awards
Frontman Yannis Philippakis says the band are "turning the heat up in the oven a little bit"
Frontman makes giant leap during Irish gig
Disclosure, Katy B and Kendrick Lamar also revealed as full line-up is confirmed